Effort-saving looping shears

Abstract

A pair of looping shears for gardening purpose to allow its user the optimal cutting angle while trimming twigs, comprised of strike jaw, blade jaw and effort-saving mechanism; within, a ratchet is provided to a pivot of the blade jaw that synchronously turns with the strike jaw, and a mobile tab engaged with the ratchet and the handle of the blade jaw to achieve comfortable grip on the handles at an optimal angle for applying the force to repeat trimming twigs and branches.

What is claimed is:  
     
       1. A pair of looping shears with effort-saving mechanism for gardening purpose comprised of a strike jaw, a blade jaw and an effort-saving mechanism; the strike jaw including a strike piece mounted to a handle, the blade jaw including a blade piece pivoted to another handle, the effort-saving mechanism including a ratchet and a mobile tab, the mobile tab having a tooth respectively protruding from both sides thereof for pivoting the blade jaw and the strike jaw to overlap each other, the ratchet being provided at the blade jaw of the pair of looping shears to execute synchronous turning with the blade jaw, the mobile tab being pivoted to the handle of the blade jaw for engaging the ratchet with its teeth thereby causing the mobile tab to link motion of the ratchet when the handles operate, and 
       an edge of the blade piece of the blade jaw having a blade tip, a lower surface of the blade piece having a rectangular pivot hole, the handle of the blade jaw including a long stick having a sheet iron secured to its front section, an end surface of the sheet iron having a circular through hole, a lower edge of the through hole including a rectangular slot, and a pin hole being provided in a surface of the sheet iron below the rectangular slot.  
     
     
       2. A pair of looping shears with effort-saving mechanism for gardening purpose as claimed in  claim 1 , wherein the strike piece of the strike jaw includes an arc curving inwardly between a straight part and a curved part, a pivot hole being provided in the arc, and the handle of the strike jaw including a long stick having a sheet iron secured to its front section. 
     
     
       3. A pair of looping shears with effort-saving mechanism for gardening purpose as claimed in  claim 2 , wherein a buffer made of soft material is provided on an inner side of one of said handles to reduce impact created while closing up the handles. 
     
     
       4. A pair of looping shears with effort-saving mechanism for gardening purpose comprised of a strike jaw, a blade jaw and an effort-saving mechanism; the strike jaw including a strike piece mounted to a handle, the blade jaw including a blade piece pivoted to another handle, the effort-saving mechanism including a ratchet and a mobile tab, the mobile tab having a tooth respectively protruding from both sides thereof for pivoting the blade jaw and the strike jaw to overlap each other, the ratchet being provided at the blade jaw of the pair of looping shears to execute synchronous turning with the blade jaw, the mobile tab being pivoted to the handle of the blade jaw for engaging the ratchet with its teeth thereby causing the mobile tab to link motion of the ratchet when the handles operate, and 
       the ratchet of the effort-saving mechanism including a ratchet pivot, the ratchet pivot passing through and securing the blade jaw and the strike jaw to allow synchronous looping by the ratchet pivot and the blade jaw, a bonnet being provided to a top of the ratchet pivot of the effort-saving mechanism so that the ratchet is provided at a lower section of the bonnet, a lower part of the ratchet having a rectangular section and a cylindrical section, and a tail of the cylindrical section being threaded.  
     
     
       5. A pair of looping shears with effort-saving mechanism for gardening purpose as claimed in  claim 4 , wherein the strike piece of the strike jaw includes an arc curving inwardly between a straight part and a curved part, a pivot hole being provided in the arc, and the handle of the strike jaw including a long stick having a sheet iron secured to its front section. 
     
     
       6. A pair of looping shears with effort-saving mechanism for gardening purpose as claimed in  claim 5 , wherein a buffer made of soft material is provided on an inner side of one of said handles to reduce impact created while closing up the handles. 
     
     
       7. A pair of looping shears with effort-saving mechanism for gardening purpose comprised of a strike jaw, a blade jaw and an effort-saving mechanism; the strike jaw including a strike piece mounted to a handle, the blade jaw including a blade piece pivoted to another handle, the effort-saving mechanism including a ratchet and a mobile tab, the mobile tab having a tooth respectively protruding from both sides thereof for pivoting the blade jaw and the strike jaw to overlap each other, the ratchet being provided at the blade jaw of the pair of looping shears to execute synchronous turning with the blade jaw, the mobile tab being pivoted to the handle of the blade jaw for engaging the ratchet with its teeth thereby causing the mobile tab to link motion of the ratchet when the handles operate, the mobile tab curving and forming upper and lower steps, said teeth respectively protruding from both ends of the lower step and having a flushed end for engaging the ratchet, and a circular hole being provided in the upper step and receiving a pin for securing the mobile tab to the handle of the blade jaw. 
     
     
       8. A pair of looping shears with effort-saving mechanism for gardening purpose as claimed in  claim 7 , wherein the strike piece of the strike jaw includes an arc curving inwardly between a straight part and a curved part, a pivot hole being provided in the arc, and the handle of the strike jaw including a long stick having a sheet iron secured to its front section. 
     
     
       9. A pair of looping shears with effort-saving mechanism for gardening purpose as claimed in  claim 8 , wherein a buffer made of soft material is provided on an inner side of one of said handles to reduce impact created while closing up the handles.